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tin can

Inner linings for tin cans

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VESTANAT® B1186A enables non-toxic protective linings for tin cans used in food applications. 


It’s a staple of our daily lives and available in any  supermarket: the tin can, invincible container for any kind of food. Tin cans have none other than Napoleon  Bonaparte to thank for their arrival on the shelves of virtually every home in the world. That’s because in 1795, Napoleon offered 12,000 francs in prize money to anyone who could supply his armies with non-perishable food. The winner of the contest was Paris confectioner Nicolas Appert with an invention that was a simple as it was ingenious: fill jars with food, heat the jars, apply an air-tight seal, and there you go—provisions that will stay edible for a virtually unlimited amount of time. What we now know as the 
tin can was born in 1810, when British businessman  Peter Durand began preserving foods using metal canisters rather than jars.

Today’s global market for canned goods is valued at  around several billion dollar and will likely grow further. An even bigger packaging hit than the tin can was the beverage can, which was invented in the US in the early 1930s. Last year, nearly 3.5 billion beverage cans were sold in Germany alone. Demand for compact beverage packaging solutions has been growing worldwide. A coating inside the can is the key to preventing any reaction from occurring between the metal wall and the actual content of the can. In addition to performing exceptionally well, this coating also needs to be highly elastic and durable, so that the food inside will remain well protected even if the can is dented. Products based  on epoxy resins have become established over the years as the industry standard. Unfortunately, the basic raw material used for these—bisphenol A, or BPA—has been a subject of public controversy for some time.

This is where Evonik’s Crosslinkers business line  comes into play: the experts at Crosslinkers have developed VESTANAT® B1186A, a crosslinker that can  be used for making tin can liners based on polyurethane. VESTANAT® B1186A thus meets the strictest requirements of governmental food safety agencies, which have approved the product as a non-hazardous  solution for can linings in direct contact with food. This application has been established on the market for several years now.

Technical Information

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